Tristar: How to Adjust the Mouthpiece for Standard Models
The following procedure details how to adjust the mouthpiece of your Tristar H81 standard model.
To adjust mouthpiece for standard models
- Hold the receiver securely against your ear with one hand.
- With the other hand, adjust the voice tube so that the tip sits two finger widths from the corner of your mouth. NOTE: To prevent breath noise, avoid position the voice tube in front of your mouth.